131021111230 has 32 divisors (see below), whose sum is σ = 249903773856. Its totient is φ = 49287481344.

The previous prime is 131021111203. The next prime is 131021111231. The reversal of 131021111230 is 32111120131.

It is a happy number.

It is a super-2 number, since 2×131021111230² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131021111231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76624 + ... + 517603.

It is an arithmetic number, because the mean of its divisors is an integer number (7809492933).

Almost surely, 2^131021111230 is an apocalyptic number.

131021111230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131021111230 is a deficient number, since it is larger than the sum of its proper divisors (118882662626).

131021111230 is a wasteful number, since it uses less digits than its factorization.

131021111230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595548.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 131021111230 its reverse (32111120131), we get a palindrome (163132231361).

The spelling of 131021111230 in words is "one hundred thirty-one billion, twenty-one million, one hundred eleven thousand, two hundred thirty".